Page 495 - Foton Workshop Manual - Auman EST-M

Diagnosis - Mechanical fault diagnosis DI - 441

Failure phenomenon Possible reason Failure elimination IN

1. Gear oil (not sufficient) Filling gear oil
DI
2. Gear oil (model not correct) Change

3. Drive gear bearing (worn or broken) Change
EG
4. Differential mechanism (bearings at two
Replace the broken bearing
ends broken and bearing cover bolt loose)
TR
5. Drive and driven gear (mesh gap too much) Adjust the clearance

6. Drive and driven gears (mesh gap too small) Adjust the clearance
AX
7. Drive and driven gears (worn excessively) Replace the drive and driven gears

8. Driven gear (bolt loose) Tighten the bolt
Abnormal noise during
FR
9. Drive and driven gear (mesh surface not
driving Adjust the drive and driven gears
correct)
ST
10. Planetary gear and semi-gear (back lash
Adjustment
too much)
11. Axle shaft bearing (damaged) change BR

12. Semi-axle bearing (play) Re-install the semi-shaft bearing
BW
13. Differential bearing adjusting nut
Fasten the adjusting nut.
(loosening)
14.Tyre nut (loose) Re-install the tyre nut EL

15. Driving and driven gear (broken) change

1. Gear oil (excessive) Discharge the gear oil

2. Vent plug (clogged) Dredge the vent plug

3. Oil seal (damaged, worn) Replace the oil seal

4. Connecting surface of axle housing and Coat sealant and reinstall the main

main drive (oil leakage) transmission

5. Axle housing welding seam, main reducer
Drive axle leaking during Repair or replace the leaking housing
housing (leaking)
driving
6. Fill port and oil discharge outlet plug screw
Replace the gasket
(leaking)
7. Oil gear of driving gear (damaged) Change

8. Axle shaft oil seal of rear axle (damaged) Change
9. Rear axle semi-shaft spline (broken tooth) Change

10. Rear axle semi-axle (broken) Change

DI-441